NSF/ANSI 360 applies only to wastewater treatment systems with rated capacities between 400 and 1,500 gallons per day, which have already been certified to NSF/ANSI 40 (CBOD5 and TSS reduction) or NSF/ANSI 245 (nitrogen reduction).

Benefits of Certification

Certification to NSF/ANSI 360 provides assurance that your onsite systems are accurately and consistently evaluated when seeking field performance data.

Certification also allows your company to:

Distinguish your product in the marketplace by demonstrating its performance through independent evaluation

List your product and company in our online directory of certified treatment systems

Expand the use of the NSF certification mark on your systems and in your promotional materials for recognition of your field evaluation assessment

Why Work With NSF?

NSF International has over 40 years of experience in the industry. We create standards and protocols, test and certify products and provide inspector accreditation. Our services deliver confidence to consumers, assurance of performance to public health officials and market access for product manufacturers in the onsite wastewater treatment industry.

NSF/ANSI 360 for field performance assessment, combined with NSF/ANSI 40 and 245 for system performance testing under controlled, high frequency sampling and high volume capacity and stress event conditions, provide a comprehensive review of the treatment performance of residential onsite wastewater treatment systems.

Products that comply with the requirements of the standard may use the NSF mark, one of the most recognized and trusted certification marks in the wastewater industry.

Certification Process

Initial Certification

Your company submits an application.

NSF reviews general information, drawings and design specifications of the treatment system.

NSF installs the unit at a test facility and performs thorough testing.